A display module and display device

Abstract

This disclosure provides a display module and display device. The first light-shielding structure includes a plurality of first inclined through holes extending through its thickness direction. The first inclined through holes can transmit light emitted from the edge sub-pixels under a side viewing angle. For example, the first inclined through holes can transmit light emitted from the red sub-pixel on the left edge and the blue sub-pixel on the right edge under a side viewing angle. The first light-shielding structure provided by this disclosure can improve the problem of different colors displayed on the left and right edges under a side viewing angle while ensuring that the module structure in the non-display area under the cover is not visible from a normal viewing angle.

Description

Technical Field

[0001] This disclosure relates to the field of display technology, and in particular to a display module and display device. Background Technology

[0002] Currently, all display products using cover glass (CG) exhibit a noticeable bleak left edge and yellow right edge when viewed from wide viewing angles on the left and right sides during grayscale display. This is due to the black ink printed on the lower surface of the cover glass around its perimeter. When viewed from a wide viewing angle, the edge pixels are obscured by this black ink, resulting in this edge color discrepancy and severely impacting the user's sensory experience. Utility Model Content

[0003] This disclosure provides a display module and display device to solve the problem of uneven color display at the edges, with the left side being cyan and the right side being yellow, when the human eye views the grayscale image from a wide viewing angle on the left and right sides.

[0004] This disclosure provides a display module, comprising:

[0005] The display panel includes a display area and a non-display area surrounding the display area; the display panel also includes a plurality of sub-pixels arranged in an array in the display area, wherein the sub-pixels in the same column have the same color, and the sub-pixels in the same row are periodically arranged according to a preset color arrangement period;

[0006] A cover plate, located on the light-emitting side of the display panel, the cover plate includes a light-transmitting part covering the display area and a frame part surrounding the light-transmitting part;

[0007] A first light-shielding structure is located on at least one side surface of the frame portion, the first light-shielding structure is disposed around the light-transmitting portion; in the row direction, at least one side of the first light-shielding structure includes a plurality of first inclined through holes extending through its thickness direction, and the orthographic projection of the first light-shielding structure on the display panel blocks all of the non-display area.

[0008] In one possible implementation, in the display module provided in the embodiments of this disclosure, the first light-shielding structure includes: a first light-shielding layer located on the side of the frame portion away from the display panel and surrounding the light-transmitting portion, and a second light-shielding layer located on the side of the frame portion close to the display panel and surrounding the light-transmitting portion;

[0009] In the row direction, at least one side of the first light-shielding layer includes a first light-shielding strip and a first opening that extend along the column direction and are alternately arranged along the row direction. At least one side of the second light-shielding layer includes a second light-shielding strip and a second opening that extend along the column direction and are alternately arranged along the row direction. The first opening and the second opening, which are orthographically projected onto the display panel, constitute the first inclined through hole.

[0010] In one possible implementation, in the display module provided in the embodiments of this disclosure, the first opening and the second opening are staggered along the row direction, and the first opening and the second opening that are orthographically projected onto the display panel do not overlap, and the adjacent edges of the first light-shielding strip and the second light-shielding strip that are orthographically projected onto the display panel are at least in contact.

[0011] In one possible implementation, in the display module provided in the embodiments of this disclosure, the first light-shielding layer is periodically arranged along the row direction with the first light-shielding strip and the first opening as the arrangement period, and the second light-shielding layer is periodically arranged along the row direction with the second light-shielding strip and the second opening as the arrangement period, wherein the sum of the widths of the first light-shielding strip and the first opening located in the same period is equal to the sum of the widths of the second light-shielding strip and the second opening.

[0012] In one possible implementation, in the display module provided in the embodiments of this disclosure, the first light-shielding structure includes: a first light-shielding layer located on the side of the frame portion away from the display panel and surrounding the light-transmitting portion, and a second light-shielding layer located on the side of the frame portion close to the display panel and surrounding the light-transmitting portion;

[0013] In the row direction, at least one side of the first light-shielding layer includes a plurality of first through holes arranged in an array, and at least one side of the second light-shielding layer includes a plurality of second through holes arranged in an array. Each of the first inclined through holes is composed of a first through hole and a second through hole.

[0014] In one possible implementation, in the display module provided in the embodiments of this disclosure, multiple columns of the first through holes and multiple columns of the second through holes are arranged alternately at intervals along the row direction.

[0015] In one possible implementation, in the display module provided in the embodiments of this disclosure, the frame portion includes a plurality of second inclined through holes extending through its thickness direction, and the second inclined through holes and the first inclined through holes are interconnected along the thickness direction of the frame portion.

[0016] In one possible implementation, in the display module provided in the embodiments of this disclosure, the materials of the first light-shielding layer and the second light-shielding layer are black ink.

[0017] In one possible implementation, in the display module provided in the embodiments of this disclosure, the first light-shielding structure is located on the side of the frame portion closer to the display panel, or the first light-shielding structure is located on the side of the frame portion away from the display panel; wherein, the first light-shielding structure includes oblique light-shielding portions and the first inclined through hole alternately arranged along the row direction, and the orthographic projection of the oblique light-shielding portions on the display panel covers the orthographic projection of the first inclined through hole on the display panel.

[0018] In one possible implementation, in the display module provided in the embodiments of this disclosure, the material of the oblique light-shielding part is black adhesive, and the thickness of the oblique light-shielding part is greater than 0.2 mm.

[0019] In one possible implementation, in the display module provided in the embodiments of this disclosure, the orthographic projection edge of the display panel on the cover plate is located between the edge of the cover plate and the light-transmitting portion, and the portion of the frame portion covering the non-display area is provided with the first inclined through hole.

[0020] In one possible implementation, in the display module provided in the embodiments of this disclosure, the portion of the frame portion whose orthogonal projection on the display panel does not overlap with the display panel is provided with the first inclined through hole; or, the portion of the frame portion whose orthogonal projection on the display panel does not overlap with the display panel is provided with a single piece of first light-shielding structure.

[0021] In one possible implementation, the display module provided in the embodiments of this disclosure further includes a second light-shielding structure located on the side of the frame portion away from the display panel. At least one side of the second light-shielding structure along the row direction includes a plurality of total internal reflection prisms arranged closely along the row direction. The total internal reflection prisms have a first right-angled surface and a second right-angled surface that are perpendicular to each other, as well as an inclined surface connecting the first right-angled surface and the second right-angled surface. The inclined surface is disposed in contact with the frame portion.

[0022] In one possible implementation, in the display module provided in the embodiments of this disclosure, the orthographic projection edge of the display panel on the cover plate is located between the edge of the cover plate and the light-transmitting portion, and the frame portion is provided with the total internal reflection prism at least covering the portion of the non-display area.

[0023] Accordingly, this disclosure also provides a display device, including: the display module provided in this disclosure, and a backlight module located on the side of the display panel away from the cover plate. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a display module provided in an embodiment of the present disclosure;

[0025] Figure 2 for Figure 1 A plan view of a central display panel;

[0026] Figure 3 for Figure 1 A schematic diagram of the first light-shielding layer in the middle;

[0027] Figure 4 for Figure 1 A magnified schematic diagram of the structure within the dashed box EE;

[0028] Figure 5 for Figure 4 A magnified schematic diagram of the structure within the dashed box FF;

[0029] Figure 6 for Figure 1 Another schematic diagram of the structure of the first and second light-shielding layers;

[0030] Figure 7 This is a schematic diagram of the structure of another display module provided in an embodiment of the present disclosure;

[0031] Figure 8 for Figure 7 A schematic diagram of the first light-shielding layer in the middle;

[0032] Figure 9 for Figure 7 Enlarged view within the dashed box GG;

[0033] Figure 10 for Figure 9 A magnified schematic diagram of the structure within the dashed box KK;

[0034] Figure 11 This is a schematic diagram of the structure of another display module provided in an embodiment of the present disclosure;

[0035] Figure 12 for Figure 11 A magnified schematic diagram of the structure within the dashed box MM;

[0036] Figure 13 This is a schematic diagram of the structure of another display module provided in an embodiment of the present disclosure;

[0037] Figure 14 for Figure 13A schematic diagram of the enlarged structure within the dashed box NN;

[0038] Figure 15 This is a schematic diagram of the structure of another display module provided in an embodiment of the present disclosure;

[0039] Figure 16 for Figure 15 A magnified schematic diagram of the structure within the dashed box PP. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Furthermore, the embodiments and features in the embodiments of this disclosure can be combined with each other without conflict. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0041] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "comprising" or "including," and similar terms as used in this disclosure, mean that an element or object preceding the term encompasses the elements or objects listed following the term and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "inner," "outer," "upper," and "lower" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0042] It should be noted that the dimensions and shapes of the figures in the accompanying drawings do not reflect actual proportions and are intended only to illustrate the content of this disclosure. Furthermore, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0043] This disclosure provides a display module, such as... Figures 1-3 As shown, it includes a display panel 1, a cover plate 2, and a first light-shielding structure 3. The display panel 1 includes a display area AA and a non-display area BB surrounding the display area AA. The display area AA can emit light, while the non-display area BB cannot emit light. The non-display area BB is commonly referred to as the black border. Figure 2This is a planar schematic diagram of a display panel 1. The display panel 1 also includes multiple sub-pixels arranged in an array in the display area AA, such as red sub-pixels R, green sub-pixels G, and blue sub-pixels B. The sub-pixels in the same column have the same color, for example, a column of red sub-pixels R, a column of green sub-pixels G, and a column of blue sub-pixels B. The sub-pixels in the same row are arranged periodically according to a preset color arrangement period. For example, if the preset color arrangement period is RGB, then the same row is arranged in RGBRGBRGB…. In one embodiment, the display panel 1 can be a liquid crystal display (LCD). The liquid crystal display panel includes an array substrate 11 and a color filter substrate 12 disposed opposite to each other, and a liquid crystal layer (not shown) located between the two. The array substrate 11 is generally provided with driving circuits and electrode structures, and the color filter substrate 12 is generally provided with a black matrix BM and a color filter layer. Figure 1 and Figure 2 In this context, RGB corresponds to the red, green, and blue color filters, while the non-display area BB is also known as the BM area. Liquid crystal display panels use an electric field to control the alignment of liquid crystal molecules and adjust the backlight transmittance to display images.

[0044] like Figure 1 As shown, the cover plate 2 is located on the light-emitting side of the display panel 1, that is, the cover plate 2 and the display panel 1 are stacked. For example, the cover plate 2 can be bonded to the display panel 1 by an optically clear adhesive layer 4 (OCA). The cover plate 2 includes a light-transmitting portion 21 covering the display area AA and a frame portion 22 located around the light-transmitting portion 21; the material of the cover plate 2 can be glass or other materials with good light transmission properties.

[0045] like Figure 1 and Figure 3 As shown, the first light-shielding structure 3 is located on at least one side surface of the frame portion 22. Figure 3This is a plan view of the first light-shielding structure 3 on one side surface of the frame portion 22. The first light-shielding structure 3 is arranged around the light-transmitting portion 21, that is, the first light-shielding structure 3 is arranged corresponding to the non-display area BB. In the row direction X, at least one side of the first light-shielding structure 3 includes a plurality of first inclined through holes H1 penetrating its thickness direction. In this embodiment, the first light-shielding structure 3 includes a plurality of first inclined through holes H1 penetrating its thickness direction on both the left and right sides, and the orthogonal projection of the first light-shielding structure 3 on the display panel 1 blocks all non-display areas BB. Specifically, the material of the first light-shielding structure 3 can be black ink. The orthogonal projection of the black ink on the display panel 1 blocks all non-display areas BB. In this way, when the display panel 1 is lit, the non-display area BB is completely blocked by the black ink, so it can be ensured that the module structure on the lower surface of the cover plate 2 is not visible from the orthogonal viewing angle, and the black edge of the non-display area BB is not visible to the human eye, thereby improving the display effect of the display panel 1.

[0046] The display module provided in this embodiment includes a first light-shielding structure 3 comprising a plurality of first inclined through holes H1 extending through its thickness direction. The first inclined through holes H1 allow light emitted from the edge sub-pixels at a side viewing angle to pass through. For example, the first inclined through holes H1 allow light emitted from the red sub-pixel R on the left edge and the blue sub-pixel B on the right edge at a side viewing angle to pass through. In contrast, the black ink in related technologies is a planar structure coated on the lower surface of the frame portion 22 of the cover plate 2. In related technologies, when the human eye observes the display area AA from a wide viewing angle on the left and right sides, the red sub-pixel R on the left edge and the blue sub-pixel B on the right edge are obscured by the black ink. Visually, the obscuration of the red sub-pixel R on the left causes the green sub-pixel G and the blue sub-pixel B to mix into cyan, and the obscuration of the blue sub-pixel B on the right causes the red sub-pixel R and the green sub-pixel G to mix into yellow, resulting in a color mismatch display problem when viewed from a wide viewing angle. Therefore, the first light-shielding structure 3 provided in this disclosure, while ensuring that the module structure of the non-display area BB under the cover plate 2 is not visible from a normal viewing angle, can improve the problem of color mismatch display on the left and right edges at a side viewing angle.

[0047] In some embodiments, in the display module provided in the present disclosure, such as Figure 1 , Figure 3 and Figure 4 As shown, Figure 4 for Figure 1 The enlarged structural diagram within the dashed frame EE shows that the first light-shielding structure 3 includes: a first light-shielding layer 31 located on the side of the frame portion 22 away from the display panel 1 and surrounding the light-transmitting portion 21, and a second light-shielding layer 32 located on the side of the frame portion 22 close to the display panel 1 and surrounding the light-transmitting portion 21; that is, the material of the first light-shielding layer 31 and the second light-shielding layer 32 is black ink.

[0048] In the row direction X, at least one side of the first light-shielding layer 31 includes a first light-shielding strip 311 extending along the column direction Y and alternately arranged along the row direction X, and a first opening 312. In this embodiment, the first light-shielding layer 31 has first light-shielding strips 311 extending along the column direction Y and alternately arranged along the row direction X on both its left and right sides. At least one side of the second light-shielding layer 32 includes a second light-shielding strip 321 extending along the column direction Y and alternately arranged along the row direction X, and a second opening 322. In this embodiment, the second light-shielding layer 32 has second light-shielding strips 321 extending along the column direction Y and alternately arranged along the row direction X on both its left and right sides. The first opening 312 and the second opening 322 projected orthogonally onto the display panel 1 constitute the aforementioned first inclined through-hole H1. Specifically, Figure 3 It can be Figure 1 A plan view of the first light-shielding layer 31, a plan view of the second light-shielding layer 32, and... Figure 3 They are the same, but the first opening 312 of the first light-shielding layer 31 and the second opening 322 of the second light-shielding layer 32 are staggered along the row direction X. Taking the left side of the display module as an example, for instance... Figure 1 and Figure 4 In the diagram, dashed lines are used to connect the left and right edges of the first opening 312 and the second opening 322 that are adjacent in the orthographic projection, respectively. In this way, the light rays emitted between the two dashed lines are visible. Arrows L1 and L2 are used to represent the light rays emitted from the red sub-pixel R.

[0049] It should be noted that in this disclosure, the row direction X can be horizontal and the column direction Y can be vertical; of course, the row direction X can be vertical and the column direction Y can be horizontal.

[0050] In some embodiments, in the display module provided in the present disclosure, such as Figure 1 and Figure 4As shown, the upper and lower surfaces of the frame portion 22 of the cover plate 2 are coated with black ink. The black ink is designed as a segmented strip structure. For example, the ink interval on the upper surface of the frame portion 22 can be smaller than the ink interval on the lower surface. That is, the width of the first opening 312 along the row direction X is smaller than the width of the second opening 322 along the row direction X. The ink blank areas on the upper and lower surfaces are staggered. That is, the first opening 312 and the second opening 322 are staggered along the row direction X. Furthermore, the first opening 312 and the second opening 322 that are orthographically projected on the display panel 1 do not overlap. The adjacent edges of the first light-shielding strip 311 and the second light-shielding strip 321 that are orthographically projected on the display panel 1 are at least in contact. In this way, light can be blocked by the black ink on the upper and lower surfaces of the frame portion 22 of the cover plate 2 from the frontal view and cannot pass through. From the side view, light passes obliquely through the staggered first opening 312 and the second opening 322 through the cover plate 2, thereby observing the light emitted from the red sub-pixel R and the blue sub-pixel B at the edge. This improves the poor display of different colors at the edge.

[0051] In some embodiments, such as Figure 1 and Figure 4 As shown, the number and width of the first opening 312 and the second opening 322 can be adjusted according to the actual effect. In this embodiment, the width of the first opening 312 is smaller than the width of the second opening 322. Of course, the width of the first opening 312 along the row direction X can be greater than the width of the second opening 322 along the row direction X. Alternatively, the width of the first opening 312 along the row direction X can be equal to the width of the second opening 322 along the row direction X. As long as the adjacent first opening 312 and second opening 322 can form an inclined through hole when projected onto the display panel 1, and the first light-shielding layer 31 and the second light-shielding layer 32 completely cover the non-display area BB when viewed from the front, it is acceptable.

[0052] In some embodiments, in the display module provided in the present disclosure, such as Figure 1 , Figures 3-5 As shown, Figure 5 for Figure 4The enlarged structural diagram within the dashed box FF shows that the first light-shielding layer 31 is periodically arranged along the row direction X with the arrangement period T of the first light-shielding strip 311 and the first opening 312. The second light-shielding layer 32 is periodically arranged along the row direction X with the arrangement period T of the second light-shielding strip 321 and the second opening 322. The sum of the widths of the first light-shielding strip 311 and the first opening 312 in the same period is equal to the sum of the widths of the second light-shielding strip 321 and the second opening 322. For example, if the width of the first opening 312 is d1, the width of the first light-shielding strip 311 is d2, the width of the second light-shielding strip 321 is d3, and the width of the second opening 322 is d4, then d1 + d2 = d3 + d4. In this embodiment, the first inclined through-hole H1 with a small opening on the upper surface and a large opening on the lower surface is formed with d1 < d3 and d2 > d4 as an example. Figure 5 As shown, a viewing angle (vertical angle from frontal observation) is defined as α1, where α1 = Arctand2 / d5, and d5 is the sum of the thicknesses of the cover plate 2 and the black ink. Since the thickness of the black ink is very small, it can be ignored, so d5 is considered as the thickness of the cover plate 2, which is 0.5~0.7mm. The specific dimensions in this disclosure can be adjusted according to the actual situation, and the best visual effect shall prevail. The width W of the black ink coated around the cover plate 2 is approximately 10mm horizontally. For example, the designed d1 is 0.4mm, d2 is 1mm, d3 is 0.6mm, d4 is 0.8mm, and d5 = 0.5mm, so the viewing angle α1 is 63.44°.

[0053] In some embodiments, in the display module provided in the present disclosure, such as Figure 1 and Figure 4 As shown, the edge of the orthographic projection of the display panel 1 onto the cover plate 2 is located between the edge of the cover plate 2 and the light-transmitting portion 21. That is, a portion of the frame portion 22 covers the non-display area BB of the display panel 1, and a portion is located on the outer side of the display panel 1. The portion of the frame portion 22 covering the non-display area BB is provided with a first inclined through hole H1. That is, in this embodiment, at least the upper and lower surfaces of the frame portion 22 corresponding to the non-display area BB are coated with segmented black ink to form the first inclined through hole H1, so as to block the non-display area BB from the frontal view and allow light emitted from the edge sub-pixels to pass through from the side view. In this embodiment, not only are the upper and lower surfaces of the frame portion 22 corresponding to the non-display area BB coated with segmented black ink to form the first inclined through hole H1, but the upper and lower surfaces of the portion of the frame portion 22 that does not overlap with the display panel 1 on the orthographic projection onto the display panel 1 are also coated with segmented black ink to form the first inclined through hole H1. That is, the entire upper and lower surfaces of the frame portion 22 are coated with segmented black ink to form the first inclined through hole H1.

[0054] In some embodiments, in the display module provided in the present disclosure, such as Figure 6As shown, this disclosure may also coat only the upper and lower surfaces of the portion of the bezel portion 22 that covers the non-display area BB with segmented black ink to form the first inclined through hole H1, while the upper and lower surfaces of the portion of the bezel portion 22 that does not overlap with the display panel 1 on the orthographic projection of the display panel 1 may be coated with a single piece of black ink.

[0055] In some embodiments, in the display module provided in the present disclosure, such as Figure 7 As shown, Figure 7 and Figure 1 The principle behind improving edge color display is similar; both involve coating the upper and lower surfaces of the frame portion 22 of the cover plate 2 with black ink, and designing inclined through holes on the upper and lower surfaces. Figure 7 and Figure 1 The difference is Figure 7 The cover plate 2, the first light-shielding layer 31 and the second light-shielding layer 32 in the middle Figure 1 different, Figure 7 The first light-shielding layer 31 includes at least one side of a plurality of first through holes V1 arranged in an array. In this embodiment, the first light-shielding layer 31 has multiple first through holes V1 arranged in an array on both its left and right sides as an example. The second light-shielding layer 32 includes at least one side of a plurality of second through holes V2 arranged in an array. In this embodiment, the second light-shielding layer 32 has multiple second through holes V2 arranged in an array on both its left and right sides as an example. Each first inclined through hole H1 is composed of one first through hole V1 and one second through hole V2. Figure 8 As shown, Figure 8 It can be Figure 7 A plan view of the first light-shielding layer 31, a plan view of the second light-shielding layer 32, and... Figure 8 The arrangement is similar, but multiple rows of first through holes V1 and multiple rows of second through holes V2 are arranged alternately along the row direction X. This allows the non-display area BB to be completely blocked by black ink. From a frontal view, the light emitted from the edge red sub-pixels R and blue sub-pixels B (as shown by the vertical arrow) is blocked by the black ink on the upper and lower surfaces of the frame portion 22 of the cover plate 2 and cannot pass through. From a side view (as shown by the oblique arrow), the light passes obliquely through the cover plate 2 through the first inclined through hole H1 formed by the first through hole V1 and the second through hole V2, thereby allowing the light emitted from the edge red sub-pixels R and blue sub-pixels B to be observed, thus improving the poor display of different colors at the edges.

[0056] In some embodiments, in the display module provided in the present disclosure, such as Figure 7 and Figure 9 As shown, Figure 9 for Figure 7The enlarged schematic diagram within the dashed frame GG shows that the frame portion 22 includes a plurality of second inclined through holes H2 extending through its thickness direction. The second inclined through holes H2 and the first inclined through holes H1 are interconnected along the thickness direction of the frame portion 22. For example, by perforating the cover plate 2 between the first inclined through holes H1, the light transmittance at the side viewing angle can be further improved, thus enhancing the display effect. Specifically, the second inclined through holes H2 and the first inclined through holes H1 can be fabricated using laser micromachining or an etching solution.

[0057] In some embodiments, in the display module provided in the present disclosure, such as Figure 7 and Figure 9 As shown, the shapes of the first through-hole V1 and the second through-hole V2 can be circular, square, etc. This disclosure uses circular shapes for the first through-hole V1 and the second through-hole V2 as an example. The diameter of the first through-hole V1 is smaller than the diameter of the second through-hole V2. Thus, under a frontal viewing angle, the light emitted from the edge red sub-pixel R and blue sub-pixel B is blocked or absorbed by the black ink. Under a side viewing angle, the light passes obliquely through the corresponding first tilted through-hole H1 and second tilted through-hole H2, ultimately improving the edge color display. The number and size of the first through-hole V1 with a smaller diameter than the second through-hole V2 can be adjusted and verified according to the actual effect. Figure 10 As shown, Figure 10 for Figure 9 The enlarged structural diagram within the dashed box KK shows that the diameter of the first through hole V1 is D1, and the spacing between adjacent first through holes V1 in the row direction X is D2. The diameter of the second through hole V2 is D3, and the spacing between adjacent second through holes V2 in the row direction X is D4. The design requires the hole to be invisible from a frontal view but visible from a side view. A viewing angle (vertical angle from the frontal view) is defined as α2, where α2 = Arctan(D1 + D2) / d5, and d5 is the sum of the thicknesses of the cover plate 2 and the black ink. Since the thickness of the black ink is very small, it can be ignored; therefore, d5 is considered the thickness of the cover plate 2, which is 0.5–0.7 mm. The specific dimensions of this disclosure can be adjusted according to actual conditions, with the best visual effect as the final standard. For example, if D1 is 0.1 mm, D2 is 0.3 mm, D3 is 0.3 mm, D4 is 0.1 mm, and the thickness of the cover plate 2 is 0.5 mm, then the viewing angle α2 is 38.66 degrees.

[0058] In some embodiments, in the display module provided in the present disclosure, such as Figure 7 and Figure 9 As shown, in this disclosure, only the upper and lower surfaces of the portion of the bezel 2 that covers the non-display area BB are coated with black ink to form the first through hole V1 and the second through hole V2, while the upper and lower surfaces of the portion of the bezel 22 that does not overlap with the display panel 1 on the orthographic projection of the display panel 1 are coated with a whole piece of black ink.

[0059] In some embodiments, in the display module provided in the present disclosure, Figure 7 Alternatively, the upper and lower surfaces of the portion of the bezel 22 that covers the non-display area BB can be coated with black ink to form circular through holes. Furthermore, the upper and lower surfaces of the portion of the bezel 22 that does not overlap with the display panel 1 when projected onto the display panel 1 can also be coated with black ink to form circular through holes. In other words, the black ink coated on the upper and lower surfaces of the entire bezel 22 forms an array of circular through holes (V1 and V2) along the row direction X and column direction Y.

[0060] In some embodiments, in the display module provided in the present disclosure, such as Figure 11 and Figure 12 As shown, Figure 12 for Figure 11 Enlarged structural diagram within the dashed box MM. Figure 12 and Figure 1 The difference is: Figure 12 The first light-shielding structure 3 is located on the side of the bezel 22 near the display panel 1. The first light-shielding structure 3 includes oblique light-shielding portions 30 and first inclined through-holes H1 alternately arranged along the row direction X. The orthographic projection of the oblique light-shielding portions 30 on the display panel 1 covers the orthographic projection of the first inclined through-hole H1 on the display panel 1. The material of the oblique light-shielding portions 30 can be black adhesive, and the thickness of the oblique light-shielding portions 30 is greater than 0.2 mm. Figure 11 A grating-like structure is formed using black adhesive only on the side of the bezel 22 closest to the display panel 1. The black adhesive also serves to secure the cover plate 2. Taking the left side of the display module as an example, the black adhesive blocks the light path from a direct viewing angle, while light can pass through the first tilted through-hole H1 from a side viewing angle. This allows the observer to see the light emitted from the edge red sub-pixels R from a side view, improving the problem of poor edge color display. The adhesive application can be achieved using a mold or tape, and the tilt angle and spacing of the first tilted through-hole H1 can be designed for optimal visual effect.

[0061] In some embodiments, in the display module provided in the present disclosure, such as Figure 13 and Figure 14 As shown, Figure 14 for Figure 13 A magnified schematic diagram of the structure within the dashed box NN. Figure 13 and Figure 11 The difference is: Figure 13 The first light-shielding structure 3 is located on the side of the bezel 22 away from the display panel 1. By designing the black adhesive grating structure on the upper surface of the cover plate 2, the effect is achieved... Figure 11 same.

[0062] In some embodiments, in the display module provided in the present disclosure, such as Figure 11 and Figure 13 As shown, in this disclosure, only the upper or lower surface of the portion of the bezel 22 covering the non-display area BB is coated with black adhesive to form the first inclined through hole H1, while the upper or lower surface of the portion of the bezel 22 that does not overlap with the display panel 1 on the orthographic projection of the bezel 22 is coated with a whole piece of black adhesive.

[0063] In some embodiments, in the display module provided in the present disclosure, Figure 11 and Figure 13 Alternatively, a first inclined through hole H1 can be formed on the upper or lower surface of the portion of the bezel 22 that covers the non-display area BB using black glue. The upper or lower surface of the portion of the bezel 22 that does not overlap with the display panel 1 when projected onto the display panel 1 can also be coated with black glue to form the first inclined through hole H1. In other words, the entire upper or lower surface of the bezel 22 forms a grating-like structure.

[0064] In some embodiments, in the display module provided in the present disclosure, such as Figure 15 and Figure 16 As shown, Figure 16 for Figure 15 Enlarged structural diagram within the dashed box PP. Figure 16 and Figure 1 The difference is: Figure 16 A second light-shielding structure 5 is formed on the side of the frame portion 22 away from the display panel 1. At least one side of the second light-shielding structure 5 along the row direction X includes a plurality of total internal reflection prisms 51 closely arranged along the row direction X. Each total internal reflection prism 51 has a first right-angled surface and a second right-angled surface that are perpendicular to each other, as well as an inclined surface connecting the first right-angled surface and the second right-angled surface. The inclined surface is disposed in contact with the frame portion 22. Specifically, a certain number of total internal reflection prisms 51 are designed on the upper surface of the frame portion 22 of the cover plate 2. For example, the total internal reflection prisms 51 can be arranged periodically, and the cross-section of the total internal reflection prisms 51 is an isosceles right triangle. This scheme mainly utilizes the principle of total internal reflection of prisms. Taking the left side of the display module as an example, when viewed from the normal angle, the light emitted from the cover plate 2 is completely reflected back by the total internal reflection prisms 51, with the path being L3→L4→L5. Therefore, the module structure on the lower surface of the cover plate 2 is not visible from the normal angle. When viewed from the side, for example, the light emitted from the red sub-pixel R at the edge (represented by L6 and L7) can be transmitted through the bevel of the total internal reflection prism 51, ultimately improving the problem of uneven color display at the edge when viewed from the side.

[0065] In some embodiments, in the display module provided in the present disclosure, such as Figure 15 and Figure 16As shown, the edge of the orthographic projection of the display panel 1 onto the cover plate 2 is located between the edge of the cover plate 2 and the light-transmitting part 21. The frame part 22 is provided with a total internal reflection prism 51 covering at least the non-display area BB. That is, the total internal reflection prism 51 must at least exactly cover the entire non-display area BB. Of course, the upper surface of the part of the frame part 22 that does not overlap with the display panel 1 can also form a total internal reflection prism 51.

[0066] In summary, the display module provided in this embodiment can make the black border of the non-display area BB invisible to the human eye from a frontal view, and the light emitted from the red sub-pixel on the left edge and the blue sub-pixel on the right edge visible from a side view, thereby improving the poor display of different colors at the edges.

[0067] Based on the same inventive concept, this disclosure also provides a display device, such as... Figure 1 , Figure 7 , Figure 11 , Figure 3 and Figure 15 As shown, it includes: the display module provided in the embodiments of this disclosure, and a backlight module located on the side of the display panel 1 away from the cover plate 2. Since the principle by which this display device solves the problem is similar to that of the display module, the implementation of the display device provided in the embodiments of this disclosure can refer to the implementation of the display module, and repeated details will not be described again.

[0068] In some embodiments, in the display module provided in the present disclosure, such as Figure 1 , Figure 7 , Figure 11 , Figure 3 and Figure 15 As shown, it also includes: a polarizer 100 located between the display panel 1 and the backlight module, and a frame 200 for supporting and protecting the display module and the backlight module; the top of the frame 200 is attached to the cover plate 2. The backlight module may include a light source (not shown), an optical film 101, a light guide plate 102, a back plate 103, frame adhesive 104, etc. The light source can be direct-lit or side-lit. The back plate 103 can be L-shaped. The back plate 103 is used to support and fix the display panel 1 and the optical film 101, the light guide plate 102, etc. The vertical part of the back plate 103 is attached to the polarizer 100 through an adhesive layer 105, and the horizontal part of the back plate 103 is attached to the light guide plate 102 through frame adhesive 104.

[0069] It should be noted that this disclosure is only an illustrative description of the structure of the backlight module and the overall frame 200. These structures are the same as those in related technologies and will not be described in detail here.

[0070] In specific implementations, the display device provided in the embodiments of this disclosure can be any product or component with display function, such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or navigator. Other essential components of this display device are understood by those skilled in the art and will not be described in detail here, nor should they be construed as limiting this disclosure. The display device includes, but is not limited to, components such as: a radio frequency unit, a network module, an audio output & input unit, a sensor, a display unit, a user input unit, an interface unit, a memory, a processor, and a power supply. Furthermore, those skilled in the art will understand that the above structure does not constitute a limitation on the display device provided in the embodiments of this disclosure. In other words, the display device provided in the embodiments of this disclosure may include more or fewer of the above components, or a combination of certain components, or different component arrangements.

[0071] Although preferred embodiments of this disclosure have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this disclosure.

[0072] Obviously, those skilled in the art can make various modifications and variations to the embodiments of this disclosure without departing from the spirit and scope of the embodiments of this disclosure. Therefore, if these modifications and variations to the embodiments of this disclosure fall within the scope of the claims of this disclosure and their equivalents, this disclosure is also intended to include these modifications and variations.

Claims

1. A display module, characterized by include: The display panel includes a display area and a non-display area surrounding the display area; the display panel also includes a plurality of sub-pixels arranged in an array in the display area, wherein the sub-pixels in the same column have the same color, and the sub-pixels in the same row are periodically arranged according to a preset color arrangement period; A cover plate, located on the light-emitting side of the display panel, the cover plate includes a light-transmitting part covering the display area and a frame part surrounding the light-transmitting part; A first light-shielding structure is located on at least one side surface of the frame portion, the first light-shielding structure is disposed around the light-transmitting portion; in the row direction, at least one side of the first light-shielding structure includes a plurality of first inclined through holes extending through its thickness direction, and the orthographic projection of the first light-shielding structure on the display panel blocks all of the non-display area.

2. The display module of claim 1, wherein, The first light-shielding structure includes: a first light-shielding layer located on the side of the frame portion away from the display panel and surrounding the light-transmitting portion, and a second light-shielding layer located on the side of the frame portion close to the display panel and surrounding the light-transmitting portion; In the row direction, at least one side of the first light-shielding layer includes a first light-shielding strip and a first opening that extend along the column direction and are alternately arranged along the row direction. At least one side of the second light-shielding layer includes a second light-shielding strip and a second opening that extend along the column direction and are alternately arranged along the row direction. The first opening and the second opening, which are orthographically projected onto the display panel, constitute the first inclined through hole.

3. The display module of claim 2, wherein the display module is configured to be mounted to a display module mounting surface of a display module mounting structure. The first opening and the second opening are staggered along the row direction. When projected onto the display panel, the first opening and the second opening that are adjacent do not overlap. When projected onto the display panel, the adjacent edges of the first light-shielding strip and the second light-shielding strip that are adjacent at least in contact are provided.

4. The display module of claim 3, wherein the display module is configured to be mounted on a display device. The first light-shielding layer is arranged periodically along the row direction with the first light-shielding strip and the first opening as the arrangement period, and the second light-shielding layer is arranged periodically along the row direction with the second light-shielding strip and the second opening as the arrangement period. The sum of the widths of the first light-shielding strip and the first opening located in the same period is equal to the sum of the widths of the second light-shielding strip and the second opening.

5. The display module of claim 1, wherein the display module is configured to be mounted on a display stand. The first light-shielding structure includes: a first light-shielding layer located on the side of the frame portion away from the display panel and surrounding the light-transmitting portion, and a second light-shielding layer located on the side of the frame portion close to the display panel and surrounding the light-transmitting portion; In the row direction, at least one side of the first light-shielding layer includes a plurality of first through holes arranged in an array, and at least one side of the second light-shielding layer includes a plurality of second through holes arranged in an array. Each of the first inclined through holes is composed of a first through hole and a second through hole.

6. The display module of claim 5, wherein, Multiple rows of the first through holes and multiple rows of the second through holes are arranged alternately at intervals along the row direction.

7. The display module of claim 6, wherein the display module is configured to be mounted to a display module mounting surface of a display module mounting structure. The frame portion includes a plurality of second inclined through holes extending through its thickness direction, and the second inclined through holes and the first inclined through holes are interconnected along the thickness direction of the frame portion.

8. The display module of any one of claims 2-7, wherein, The materials of the first light-shielding layer and the second light-shielding layer are black ink.

9. The display module of claim 1, wherein, The first light-shielding structure is located on the side of the frame portion closer to the display panel, or the first light-shielding structure is located on the side of the frame portion away from the display panel; wherein, the first light-shielding structure includes oblique light-shielding portions and the first inclined through hole alternately arranged along the row direction, and the orthographic projection of the oblique light-shielding portions on the display panel covers the orthographic projection of the first inclined through hole on the display panel.

10. The display module as described in claim 9, characterized in that, The material of the oblique light-shielding part is black glue, and the thickness of the oblique light-shielding part is greater than 0.2mm.

11. The display module of any of claims 1-7, 9, 10, wherein, The orthographic projection edge of the display panel on the cover plate is located between the edge of the cover plate and the light-transmitting portion, and the portion of the frame portion covering the non-display area is provided with the first inclined through hole.

12. The display module of claim 11, wherein, The portion of the frame portion that does not overlap with the display panel on its orthographic projection is provided with the first inclined through hole; or, the portion of the frame portion that does not overlap with the display panel on its orthographic projection is provided with a single piece of the first light-shielding structure.

13. The display module of claim 1, wherein the display module is configured to be mounted on a display stand. It also includes a second light-shielding structure located on the side of the frame portion away from the display panel. At least one side of the second light-shielding structure along the row direction includes a plurality of total internal reflection prisms arranged closely along the row direction. The total internal reflection prisms have a first right-angled surface and a second right-angled surface that are perpendicular to each other, and an inclined surface connecting the first right-angled surface and the second right-angled surface. The inclined surface is disposed in contact with the frame portion.

14. The display module of claim 13, wherein the display module is configured to be mounted to a display module mounting surface of a display module mounting structure. The orthographic projection edge of the display panel on the cover plate is located between the edge of the cover plate and the light-transmitting portion, and the frame portion, at least covering the portion of the non-display area, is provided with the total internal reflection prism.

15. A display device comprising: include: The display module as described in any one of claims 1-14, and the backlight module located on the side of the display panel away from the cover plate.

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